Sentence examples for thresholds contrast from inspiring English sources

GEE was used to assess the relationship between 1 min means of contrast thresholds (contrast threshold1-min averages) and accommodation responses (accommodation response1-min averages) with time (min 1 7) to ascertain if the two sets of response measures were stable.

Spearman correlation coefficients were in addition computed between mean accommodation response (accommodation response7-min average) and mean contrast thresholds (contrast threshold7-min average) for each viewing condition for the purpose of assessing the internal validity of the results obtained with two different measurement techniques.

The drop-off of predictive ability in single-family analysis between P=0.01 and 0.05 thresholds contrasts with results of previous simulations of QTL-based selection (Hospital et al., 1997; Bernardo and Charcosset, 2006), however.

Figure 5 shows how adaptation to the mammogram images affected threshold contrast sensitivity.

Both the ARs and microfluctuations were higher under near-threshold contrast conditions than under standard contrast conditions, and no variations were found across SFs under near-threshold contrast conditions.

HVS-related research findings contend that there exists a threshold contrast for an observer to detect the change in intensity.

Wire type image quality indicators were simulated as artificial defects and the threshold contrast and minimum optical density difference for viewing each wire were investigated.

Exposure to the "blurred" amplitude spectra of mammograms is sufficient to induce adaptation to the blur, altering judgments of image focus and biasing threshold contrast sensitivity.

Spatial contrast sensitivity The contrast sensitivity function (CSF) measures the sensitivity to luminance gratings as a function of spatial frequency, where sensitivity is defined as the inverse of the threshold contrast.

Here, we continuously measured ARs, microfluctuations, and pupil diameter while emmetropic and myopic adult subjects fixated on sinusoidal grating targets of various SFs under standard and near-detection threshold contrast conditions.

The adaptation also induced strong losses in threshold contrast sensitivity that were selective for lower spatial frequencies, though these losses were very similar to the threshold changes induced by the sharpened images.